Cross-process postMessage

content/browser/tab_contents/page_navigator.h

Index: content/browser/tab_contents/page_navigator.h
diff --git a/content/browser/tab_contents/page_navigator.h b/content/browser/tab_contents/page_navigator.h
index 9369a7aff70d96e0ca5f0e014cfb96b606bf2f76..c02a43f82a2bdc485356bfa52c2f55ab187deb01 100644
--- a/content/browser/tab_contents/page_navigator.h
+++ b/content/browser/tab_contents/page_navigator.h
@@ -24,7 +24,8 @@ struct CONTENT_EXPORT OpenURLParams {
                 const GURL& referrer,
                 WindowOpenDisposition disposition,
                 content::PageTransition transition,
-                bool is_renderer_initiated);
+                bool is_renderer_initiated,
+                int64 opener_browsing_instance_frame_id = -1);
   ~OpenURLParams();
 class TabContents;
 
@@ -44,6 +45,9 @@ class TabContents;
   // The override encoding of the URL contents to be opened.
   std::string override_encoding;
 
+  // The frame id of source frame's opener, or -1 if none exists
+  int64 opener_browsing_instance_frame_id;
+
  private:
   OpenURLParams();
 };